TY  - CONF
AU  - Bertoncelj, Barbara
AU  - Vojisavljević, Katarina
AU  - Rihtaršič, Janez
AU  - Trefalt, Gregor
AU  - Malič, Barbara
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2903
AB  - In this study, the influence of the glass fiber (GF) content on the
microstructure and flexural strength of bulk molding compounds (BMCs) is
investigated. Three sets of BMCs with different weight fractions of GF
(5/10/12.5 wt%) were commercially prepared and compression molded into test
specimens. The microstructure of the composites was analysed by scanning
electron microscopy and further quantitatively characterized by Voronoi analysis
in order to define the degree of the fiber distribution homogeneity. The
experimental results were compared to the modelled microstructures. The results
revealed that the fiber distribution in the composite with 5 wt% of GF is
considered as the most homogeneous. Through the obtained microstructural
descriptors, the fiber weight content and their distribution were correlated to the
flexural strength of BMCs. The flexural strength was the highest for the
composite with 10 wt% of GF.
PB  - Mednarodna podiplomska šola Jožefa Stefana, Ljubljana
C3  - 8. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA
T1  - Microstructural analysis of Bulk Molding Compounds and correlation with the flexural strength
EP  - 12
IS  - 1
SP  - 3
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2903
ER  - 

@conference{
author = "Bertoncelj, Barbara and Vojisavljević, Katarina and Rihtaršič, Janez and Trefalt, Gregor and Malič, Barbara",
year = "2016",
abstract = "In this study, the influence of the glass fiber (GF) content on the
microstructure and flexural strength of bulk molding compounds (BMCs) is
investigated. Three sets of BMCs with different weight fractions of GF
(5/10/12.5 wt%) were commercially prepared and compression molded into test
specimens. The microstructure of the composites was analysed by scanning
electron microscopy and further quantitatively characterized by Voronoi analysis
in order to define the degree of the fiber distribution homogeneity. The
experimental results were compared to the modelled microstructures. The results
revealed that the fiber distribution in the composite with 5 wt% of GF is
considered as the most homogeneous. Through the obtained microstructural
descriptors, the fiber weight content and their distribution were correlated to the
flexural strength of BMCs. The flexural strength was the highest for the
composite with 10 wt% of GF.",
publisher = "Mednarodna podiplomska šola Jožefa Stefana, Ljubljana",
journal = "8. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA",
title = "Microstructural analysis of Bulk Molding Compounds and correlation with the flexural strength",
pages = "12-3",
number = "1",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2903"
}

Bertoncelj, B., Vojisavljević, K., Rihtaršič, J., Trefalt, G.,& Malič, B.. (2016). Microstructural analysis of Bulk Molding Compounds and correlation with the flexural strength. in 8. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA
Mednarodna podiplomska šola Jožefa Stefana, Ljubljana., 1(1), 3-12.
https://hdl.handle.net/21.15107/rcub_rimsi_2903

Bertoncelj B, Vojisavljević K, Rihtaršič J, Trefalt G, Malič B. Microstructural analysis of Bulk Molding Compounds and correlation with the flexural strength. in 8. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA. 2016;1(1):3-12.
https://hdl.handle.net/21.15107/rcub_rimsi_2903 .

Bertoncelj, Barbara, Vojisavljević, Katarina, Rihtaršič, Janez, Trefalt, Gregor, Malič, Barbara, "Microstructural analysis of Bulk Molding Compounds and correlation with the flexural strength" in 8. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA, 1, no. 1 (2016):3-12,
https://hdl.handle.net/21.15107/rcub_rimsi_2903 .

TY  - CONF
AU  - Bertoncelj, Barbara
AU  - Vojisavljević, Katarina
AU  - Rihtaršič, Janez
AU  - Huskič, Miroslav
AU  - Žagar, Ema
AU  - Malič, Barbara
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3032
AB  - Versatile applications of glass-fiber reinforced composites are still growing despite the fact that they have been is use for several decades. They exhibit good mechanical performances along with low densities and these are some of the advantages due to which they replaced metals in the past years, especially in transportation and electro industry.
Properties of composites are dependent on the individual phases, i.e. the polymer-matrix, type of reinforcement and mineral filler, and can be tailored by properly selecting the individual constituents and their ratio.
Polymer resin based on unsaturated polyesters, glass fibers and CaCO3 mineral filler is the most commonly employed in Bulk Molding Compounds (BMC), i.e. in a pre-prepared mixture of aforementioned constituents. The most common processing methods for BMCs are compression or injection molding, especially used for the mass production of small, complex-shaped components [1,2].
Since such materials are exposed to thermal stresses during processing as well as during service conditions, it is of great importance to study their thermal stability and thermal behaviour and properties. 
Different samples of BMCs were commercially fabricated with varying E-glass fiber and CaCO3 mineral filler contents, but keeping the content of polymer resin constant. The aim of this study was to investigate the effect of E-glass fiber weight content on physical properties and thermal behaviour of composites by means of the thermal analysis techniques.


[1]	R. Burns, Polyester molding compounds. New York: M. Dekker (1982).
[2]	JF. Monk, Thermosetting Plastics: Moulding materials and Processes. Harlow: Longman (1997).
C3  - 3rd Central and Eastern European Conference on Thermal Analysis and Calorimetry
T1  - Influence of E-glass fiber content on thermal properties of glass-fiber reinforced composites
EP  - 274
SP  - 274
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3032
ER  - 

@conference{
author = "Bertoncelj, Barbara and Vojisavljević, Katarina and Rihtaršič, Janez and Huskič, Miroslav and Žagar, Ema and Malič, Barbara",
year = "2015",
abstract = "Versatile applications of glass-fiber reinforced composites are still growing despite the fact that they have been is use for several decades. They exhibit good mechanical performances along with low densities and these are some of the advantages due to which they replaced metals in the past years, especially in transportation and electro industry.
Properties of composites are dependent on the individual phases, i.e. the polymer-matrix, type of reinforcement and mineral filler, and can be tailored by properly selecting the individual constituents and their ratio.
Polymer resin based on unsaturated polyesters, glass fibers and CaCO3 mineral filler is the most commonly employed in Bulk Molding Compounds (BMC), i.e. in a pre-prepared mixture of aforementioned constituents. The most common processing methods for BMCs are compression or injection molding, especially used for the mass production of small, complex-shaped components [1,2].
Since such materials are exposed to thermal stresses during processing as well as during service conditions, it is of great importance to study their thermal stability and thermal behaviour and properties. 
Different samples of BMCs were commercially fabricated with varying E-glass fiber and CaCO3 mineral filler contents, but keeping the content of polymer resin constant. The aim of this study was to investigate the effect of E-glass fiber weight content on physical properties and thermal behaviour of composites by means of the thermal analysis techniques.


[1]	R. Burns, Polyester molding compounds. New York: M. Dekker (1982).
[2]	JF. Monk, Thermosetting Plastics: Moulding materials and Processes. Harlow: Longman (1997).",
journal = "3rd Central and Eastern European Conference on Thermal Analysis and Calorimetry",
title = "Influence of E-glass fiber content on thermal properties of glass-fiber reinforced composites",
pages = "274-274",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3032"
}

Bertoncelj, B., Vojisavljević, K., Rihtaršič, J., Huskič, M., Žagar, E.,& Malič, B.. (2015). Influence of E-glass fiber content on thermal properties of glass-fiber reinforced composites. in 3rd Central and Eastern European Conference on Thermal Analysis and Calorimetry, 274-274.
https://hdl.handle.net/21.15107/rcub_rimsi_3032

Bertoncelj B, Vojisavljević K, Rihtaršič J, Huskič M, Žagar E, Malič B. Influence of E-glass fiber content on thermal properties of glass-fiber reinforced composites. in 3rd Central and Eastern European Conference on Thermal Analysis and Calorimetry. 2015;:274-274.
https://hdl.handle.net/21.15107/rcub_rimsi_3032 .

Bertoncelj, Barbara, Vojisavljević, Katarina, Rihtaršič, Janez, Huskič, Miroslav, Žagar, Ema, Malič, Barbara, "Influence of E-glass fiber content on thermal properties of glass-fiber reinforced composites" in 3rd Central and Eastern European Conference on Thermal Analysis and Calorimetry (2015):274-274,
https://hdl.handle.net/21.15107/rcub_rimsi_3032 .

TY  - CONF
AU  - Bertoncelj, Barbara
AU  - Vojisavljević, Katarina
AU  - Rihtaršič, Janez
AU  - Jelenc, Gregor
AU  - Malič, Barbara
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2902
AB  - In this study, the influence of E-glass fiber and mineral filler content
on the microstructure, physical, mechanical and dielectric properties of Glass
Fiber Reinforced Composites (GFRC) was investigated. Five sets of GFRC,
based on polymer resin with varying E-grade glass fibers and CaCO3 mineral
filler weight fractions (15/64, 20/59, 25/54, 30/49, 35/44), were commercially
prepared. Test specimens were prepared by compression molding. Scanning
Electron Microscope images revealed that at higher concentrations, the fibers
clustered together, resulting in heterogeneous microstructures. Characterization
of the composites showed that glass fiber content and distribution significantly
affects the mechanical properties. The flexural strength of the composites
decreased with increasing glass fiber content. The dielectric constant ε`
decreased with increasing fiber content.
PB  - Mednarodna podiplomska ²ola Joºefa Stefana, Ljubljana
C3  - 7. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA
T1  - Microstructure, mechanical and electrical properties of Glass Fiber Reinforced Composites (GFRC)
EP  - 161
IS  - 1
SP  - 152
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2902
ER  - 

@conference{
author = "Bertoncelj, Barbara and Vojisavljević, Katarina and Rihtaršič, Janez and Jelenc, Gregor and Malič, Barbara",
year = "2015",
abstract = "In this study, the influence of E-glass fiber and mineral filler content
on the microstructure, physical, mechanical and dielectric properties of Glass
Fiber Reinforced Composites (GFRC) was investigated. Five sets of GFRC,
based on polymer resin with varying E-grade glass fibers and CaCO3 mineral
filler weight fractions (15/64, 20/59, 25/54, 30/49, 35/44), were commercially
prepared. Test specimens were prepared by compression molding. Scanning
Electron Microscope images revealed that at higher concentrations, the fibers
clustered together, resulting in heterogeneous microstructures. Characterization
of the composites showed that glass fiber content and distribution significantly
affects the mechanical properties. The flexural strength of the composites
decreased with increasing glass fiber content. The dielectric constant ε`
decreased with increasing fiber content.",
publisher = "Mednarodna podiplomska ²ola Joºefa Stefana, Ljubljana",
journal = "7. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA",
title = "Microstructure, mechanical and electrical properties of Glass Fiber Reinforced Composites (GFRC)",
pages = "161-152",
number = "1",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2902"
}

Bertoncelj, B., Vojisavljević, K., Rihtaršič, J., Jelenc, G.,& Malič, B.. (2015). Microstructure, mechanical and electrical properties of Glass Fiber Reinforced Composites (GFRC). in 7. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA
Mednarodna podiplomska ²ola Joºefa Stefana, Ljubljana., 1(1), 152-161.
https://hdl.handle.net/21.15107/rcub_rimsi_2902

Bertoncelj B, Vojisavljević K, Rihtaršič J, Jelenc G, Malič B. Microstructure, mechanical and electrical properties of Glass Fiber Reinforced Composites (GFRC). in 7. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA. 2015;1(1):152-161.
https://hdl.handle.net/21.15107/rcub_rimsi_2902 .

Bertoncelj, Barbara, Vojisavljević, Katarina, Rihtaršič, Janez, Jelenc, Gregor, Malič, Barbara, "Microstructure, mechanical and electrical properties of Glass Fiber Reinforced Composites (GFRC)" in 7. ŠTUDENTSKA KONFERENCA MEDNARODNE PODIPLOMSKE ŠOLE JOŽEFA STEFANA, 1, no. 1 (2015):152-161,
https://hdl.handle.net/21.15107/rcub_rimsi_2902 .

TY  - CONF
AU  - Bertoncelj, Barbara
AU  - Vojisavljević, Katarina
AU  - Rihtaršič, Janez
AU  - Jelenc, Gregor
AU  - Malič, Barbara
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2896
C3  - 50th International Conference  on Microelectronics, Devices and Materials
T1  - Effect of e-glass fiber and mineral filler content on microstructure, mechanical, dielectric and thermal properties of bulk molding compound
EP  - 232
SP  - 227
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2896
ER  - 

@conference{
author = "Bertoncelj, Barbara and Vojisavljević, Katarina and Rihtaršič, Janez and Jelenc, Gregor and Malič, Barbara",
year = "2014",
journal = "50th International Conference  on Microelectronics, Devices and Materials",
title = "Effect of e-glass fiber and mineral filler content on microstructure, mechanical, dielectric and thermal properties of bulk molding compound",
pages = "232-227",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2896"
}

Bertoncelj, B., Vojisavljević, K., Rihtaršič, J., Jelenc, G.,& Malič, B.. (2014). Effect of e-glass fiber and mineral filler content on microstructure, mechanical, dielectric and thermal properties of bulk molding compound. in 50th International Conference  on Microelectronics, Devices and Materials, 227-232.
https://hdl.handle.net/21.15107/rcub_rimsi_2896

Bertoncelj B, Vojisavljević K, Rihtaršič J, Jelenc G, Malič B. Effect of e-glass fiber and mineral filler content on microstructure, mechanical, dielectric and thermal properties of bulk molding compound. in 50th International Conference  on Microelectronics, Devices and Materials. 2014;:227-232.
https://hdl.handle.net/21.15107/rcub_rimsi_2896 .

Bertoncelj, Barbara, Vojisavljević, Katarina, Rihtaršič, Janez, Jelenc, Gregor, Malič, Barbara, "Effect of e-glass fiber and mineral filler content on microstructure, mechanical, dielectric and thermal properties of bulk molding compound" in 50th International Conference  on Microelectronics, Devices and Materials (2014):227-232,
https://hdl.handle.net/21.15107/rcub_rimsi_2896 .

TY  - CONF
AU  - Bertoncelj, Barbara
AU  - Vojisavljević, Katarina
AU  - Rihtaršič, Janez
AU  - Jelenc, Gregor
AU  - Malič, Barbara
AU  - Stušek, Marko
AU  - Belavič, Darko
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2911
C3  - 49th International Conference  on Microelectronics, Devices and Materials  with the Workshop on  Digital Electronic Systems
T1  - Characterization of glass fiber reinforced composites for housing of electrical motors
EP  - 106
SP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2911
ER  - 

@conference{
author = "Bertoncelj, Barbara and Vojisavljević, Katarina and Rihtaršič, Janez and Jelenc, Gregor and Malič, Barbara and Stušek, Marko and Belavič, Darko",
year = "2013",
journal = "49th International Conference  on Microelectronics, Devices and Materials  with the Workshop on  Digital Electronic Systems",
title = "Characterization of glass fiber reinforced composites for housing of electrical motors",
pages = "106-101",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2911"
}

Bertoncelj, B., Vojisavljević, K., Rihtaršič, J., Jelenc, G., Malič, B., Stušek, M.,& Belavič, D.. (2013). Characterization of glass fiber reinforced composites for housing of electrical motors. in 49th International Conference  on Microelectronics, Devices and Materials  with the Workshop on  Digital Electronic Systems, 101-106.
https://hdl.handle.net/21.15107/rcub_rimsi_2911

Bertoncelj B, Vojisavljević K, Rihtaršič J, Jelenc G, Malič B, Stušek M, Belavič D. Characterization of glass fiber reinforced composites for housing of electrical motors. in 49th International Conference  on Microelectronics, Devices and Materials  with the Workshop on  Digital Electronic Systems. 2013;:101-106.
https://hdl.handle.net/21.15107/rcub_rimsi_2911 .

Bertoncelj, Barbara, Vojisavljević, Katarina, Rihtaršič, Janez, Jelenc, Gregor, Malič, Barbara, Stušek, Marko, Belavič, Darko, "Characterization of glass fiber reinforced composites for housing of electrical motors" in 49th International Conference  on Microelectronics, Devices and Materials  with the Workshop on  Digital Electronic Systems (2013):101-106,
https://hdl.handle.net/21.15107/rcub_rimsi_2911 .